A micropropagation protocol for Cassia angustifolia Vahl. from root explants

• Autorzy: Parveen S. , Shahzad A.
• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to develop a new micropropagation system for Cassia angustifolia Vahl., an important medicinal legume using root explant as starting material. Root explants taken from 30-day-old aseptic seedlings were cultured on Murashige and Skoog (MS) medium supplemented with different plant growth regulators: 6-benzyladenine (BA), kinetin (Kn), and thidiazuron (TDZ). Organogenic nodular calli obtained on MS + TDZ (1.0 µM) were transferred to shoot regeneration medium supplemented with different cytokinins (BA, Kn or TDZ) either alone or in combination with auxin:indole-3-acetic acid or a-naphthalene acetic acid. Maximum shoot regeneration frequency (90%) was obtained on MS + BA (2.5 µM) + NAA (0.6 µM) wherein a maximum of 42.76 ± 1.47 shoot buds per explant were induced with a maximum conversion rate of 35.63 ± 0.75 shoots per explant and average shoot length of 5.43 ± 0.20 cm. Elongated microshoots were successfully rooted under ex vitro conditions by pulse treatment in 200 µM of indole-3-butyric acid for half an hour. Microshoots were rooted, acclimatized and hardened off simultaneously in sterilized soilrite inside the growth room and then established in pots containing sterilized soil and manure (1:1) and grown under greenhouse condition with 90% survival rate. The histological sections at different developmental stages of shoot buds revealed the organization of nodular meristematic zone leading to the orientation and differentiation of shoot buds in large number and thereafter conversion into healthy shoots.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2011
• Tom: 33
• Numer: 3
• Opis fizyczny: p.789-796,fig.,ref.

Twórcy

autor

Parveen S.

• Plant Biotechnology Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202 002, UP, India

autor

Shahzad A.

• Plant Biotechnology Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202 002, UP, India

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